Finding the Fourth Proportional to 856,088.28, 1,284,217.38 and 316,485.99
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Solution
The fourth proportional to 856,088.28, 1,284,217.38 and 316,485.99 is: 474,760.39
Step by Step Solution
- Step 1: Write the proportion equation
856,088.28 : 1,284,217.38 = 316,485.99 : x - Step 2: Convert to fraction form
856,088.28/1,284,217.38 = 316,485.99/x - Step 3: Cross multiply
856,088.28x = 1,284,217.38 × 316,485.99 - Step 4: Simplify right side
856,088.28x = 406,436,808,884.51 - Step 5: Solve for x
x = 406,436,808,884.51/856,088.28 - Step 6: Final answer
x = 474,760.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.